Type-writing machine.



No. 809,979. PATENTED JAN. 16, 1906. G. E. PETERSON.

TYPE WRITING MAGHINE.

APPLICATION FILED snnnm, 1902. RENEWED MAY 5. 1905.

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CHARLES E. PETERSON. OF BROOKLYN, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS, TO MERCANTILE MANUFACTURING COMPANY, A COR- PORATION OF NEW YORK.

Specification of Letters Patent.

Patented Jan. 16, 1906.

Application filed September 12, 1902. Renewed May 5. 1905. Serial No. 259,027.

To all whom, it may concern:

Be it known that I, CHARLES E. PETERSON, a citizen of the United States, residing in the borough of Brooklyn, city of New York, county of Kings, and State of New York, have invented certain new and useful Improvements in Type WVriting Machines, of which the following is a specification.

My present invention relates to improvements in the class of type-bar type-writing machines, and particularly to a type bar movement for such machines.

My present invention consists of a shiftable carrier having a type-bar pivotally mounted thereon and carrying a plurality of type orprinting characters, a plurality of limitmg dogs or stops arranged to control the.

carrier, a grouped series of operatively-connected key-bars, one of which is connected with the type-bar to operate it and its shiftable carrier and the others of which are arranged to actuate and control the limiting stops or dogs which determine the shifted positions of the carrier.

In order that my invention may be fully understood, I will first describe the same with reference to the accompanying drawings and afterward point out the novelty more particularly in the annexed claims.

In said drawings, Figure 1 is a detail vertical longitudinal sectional view of part of a type-writing machine, illustrating my improved typebar movement. Fig. 2 is a similar detail view illustrating one of the shifted positions of the type-bar movement. Fig. 3 is a similar view illustrating another shifted position of the type-bar movement. Fig. 4 is a detail plan view of the operativelyconnected group of key-bars. Fig. 5 is a detail plan view of the type-bar carrier and its controlling dogs or stops.

In accordance with my present invention I propose to provide the type-bars witha plurality of type or printing characters and a number of operatively-connected groups of key-bars, one of each group of key-bars being connected with the type-bar, while the others of which actuate the type-bar through the connected keybar. There will be a group of connected key-bars for each typebar of the machine, and each group of key-bars will control a set of limiting dogs or stops. In the drawings forming a part of my present application I have shown only one group of connected key-bars and one type-bar with its shiftable carrier and set of limiting dogs or stops, since this single set of connected elements constitutes a complete type-bar movement constructed according to my invention.

It will be clear to those skilled in the art that in constructing a type-writing machine to embody my present invention a suflicient number of type-bars and groups of operating key-bars must be provided in the machine for meeting the requirements for a complete set of printing characters.

1 represents the base-plate of myimproved machine, upon which are mounted the upwardly-projecting lugs or brackets 2 and 3 and the guide-supporting side plates 4, which are for the purposes presently to be explained.

5 and are the horizontally-arranged guide-plates mounted upon side plates 4 and arranged in different vertical and horizontal planesthat is, the guide-plate 10 is mounted in a lower horizontal plane and in a more forward vertical plane than the guide-plate 5. These guide-plates 5 and 10 are formed with vertical guide-slots 6 and 11, respectively, for the reception of the verticallyshiftable carrier of the type-bar, which will now be described.

The type-bar carrier comprises the upper and lower rectangular guide or plate portions and 16, connected by the integral body portion 17, the guide portions 15 and 16 resting loosely in the slots 6 and 11 of plates 5 and 10. When the type-bar carrier is in its normal or lowered position, the shoulders 18 and 19 rest upon the guide-plate 10 for supporting the carrier. The carrier is also formed with a forwardly-projecting arm 20, having a laterally-bent linger or portion 20 for the engagement of the controlling dogs or stops, which will presently be described.

is the typebar, pivoted at 26 between the forwardly-projecting ears or lugs 27 mounted upon the type-bar carrier. This type-bar 25 has a downwardly-projecting heel 28, to which the rear end of a link 29 is connected, the forward end of link 29 being connected at 30 with the upwardly-projecting arm 36 of the bell-crank key-lever 35. The key-lever is journaled upon the common pivot-shaft 38, mounted in the upper ends of the slotted brackets 2. The bellcrank key-lever 35 has an operating finger key or button 37 at its outer or forward end, and the key-bar is held in its normal position with the key 37 elevated by means of a small spring 39, connecting the key-bar 35 with a plate 40, mounted upon the framepieces 41 and extending transversely of the machine above the key-bars. The framepieces 41 also support a slotted guidingcomb 42, which projects rearwardly of the machine in the usual manner.

and are two other key-bars journaled upon the rod or bar 38 and arranged upon opposite sides of the bell-crank keybar 35. These key-bars are formed with finger-keys 51 and 56, respectively. The key bar 50 is formed with an upwardly and rearwardly projecting arm 52, having a laterallyprojecting finger 53, which rests directly behind the upright arm 36 of the key-bar 35, while the key-bar 55 is formed with an upwardly and rearwardly projecting arm 57, having a laterallyprojecting finger 58, which also rests directly behind the upright arm 36 of the key-lever 35. The fingers 53 and 58 are arranged freely one below the other, so that either key-bar 50 or 55 may be rocked upon its pivot without interfering with the other, and as each of the fingers 53 and 58 is located behind the arm 36 of keybar 35 it will be clear that the key-bar 35 can be depressed without moving the other keybars 50 and 55, while the depression of either key-bar 50 or 55 will cause the key-bar 35 to be moved also. Each key-bar 50 and 55 is held in normal position by a spring 39, such as above described. The key-bars 50 and 55 are also formed with rearwardly-projecting arms 60 and 61, formed withrounded heads 60 and 61 for the purpose which will now be explained. Freely pivoted upon a rod or bolt 65, mounted in the brackets 3, are the controlling dogs or stops and 75. The dog or stop 7 O is formed with the rearwardlypresented carrierengaging shoulders 71 and 72, the forwardly-presented slot or recess 73, and the downwardly presented shoulder 74. The'dog or stop 75 is formed with the rearwardly-presented carrier-engaging shoulder 76, the forwardly-presented slot or recess 77, and the downwardly-projecting shoulder 78. represents an oscillatory escapementoperating bail or yoke carrying a type-barengaging-rod 81. This bail or yoke for operating the escapement may be of any suitable construction mounted in any suitable manner, so that by its backward and forward movement it will actuate the ordinary letter-spacing dogs of the usual feed mechanism. The construction of this part of the machine has not been illustrated, because it forms no part of my present invention.

In Fig. 1 I have shown the parts of my improved type-bar movement in normal position. It will be observed that the key end of the three key-bars 35, 50, and 55 are in their normal raised position. The stopd0gs 70 and 75 are in their normal lowered position, with their lugs 74 and 78 resting upon the base-plate 1 of the machine-frame, the upper stop-lug 72 of dog 70 being supported in the path of the stop-finger 20 of the carrier and the stop-lug 76 of the dog 75 being supported out of the path of the stop-finger 20 The heads 60 and 61 of the key-bar fingers 60 and 61 are seated in the recesses 73 and 77 of the dogs, and the type-bar carrier 15 16 and 17 and connected type-bar 25 are in their lowered inactive position.

. The type-bar 25 has three printing characters 25 25 and 25 which correspond,re spectively, with the keybars 35, 50, and 55. When the key-bar 35 is operated, the typebar 25 is first rocked upon its pivot 26 until it engages the bar 81 of the escapement bail or yoke. This engagement with the bar 81 slightly resists the movement of the typebar, so that the continued movement of key bar 35 causes the type-bar carrier 15, 16, and 17 and the type-bar 25 to be raised by reason of the slight upward pull exerted by arm 36 and link 29 upon the type-bar. The type bar carrier moves upwardly until the finger 20 is engaged by the uppershoulder 72 of the dog 70, which remains in its normal position, as shown in Fig. 1, when the key-bar 35 is operated alone. When the type-bar carrier reaches the limit of its upward movement, the continued pressure upon key-bar 35 forces the type-bar into engagement with the platen (indicated at X) for effecting an impression of the selected character, this final movement of the type-bar forcing back the escapement bail or yoke 81 for actuating the feed-escapement. When the key-bar 35 is released, the bars are immediately returned to their normal position, as shown in Fig. 1.

When the key-bar 50 is operated, the finger 53, operating through arm 36, rocks the keybar 35 for operating the type-bar carrier and type-bar in the same manner as just explained; but at the same time the head 60 of the arm 60 has moved out of the recess 73 of dog 7 O, forcing the dog 70 rearwardly on its pivot 65 and throwing the lower shoulder 71 into the path of the finger 20 of the typebar carrier, the dog 70 being held firmly against forward movement by theengagement of head 60" with the face of the dog just above the slot 7 3, the thrust against the head 60 being practically in the line of the pivot 38 0f the key-bar. The shoulder 71 being in the path of finger 20*, it will be observed that the upward movement of the type-bar carrier will be arrested in position to bring the central type 25 in the printingline when it reaches the platen. When the key-bar is released, the parts automatically return to their normal position.

When the keybar is operated, the arm 36 of key-bar 35 is rocked by the engagement of finger 58 for rocking the typo-bar 25; but since the head 61 of arm 61 is moved out of the recess 77 of dog 75, said dog will be moved rearwardly upon its pivot 65 to throw the shoulder 76 into engagement with, the finger 20 of the type-bar carrier, thereby holding the type-bar carrier in normal position and locking it against any upward move ment and causing the type-bar to be thrown up against the platen in position to impress the upper printing character 25 1 It will be observed that when the dog is in its normal position, asshown in Fig. 1, it is firmly supported against movement by the engagement of its lug 74 with the base 1 of the machine frame. WVhen the dog 70 is shifted, as shown in Fig. 2, it is held firmly against movement by the engagement of the head 6O with the face of the dog above slot 7 3. Then the dog 75 is shifted, as shown in Fig. 3, it is held firmly against movement by the engagement of the head 61 with the surface above recess 77.

My improved type-bar movement provides a simple and effective device for producing strong and uniform impressions and accurate alinement of the printed characters. The action of the limiting dogs or stops is positive and accurate.

IVhile I have illustrated my invention as applied to a group of three key-bars and a type-bar having three printing characters, I

would have it understood that I do not limit myself to this specific arrangement. The group of key-bars may contain two, three, four, or more key-bars and the type-bar the corresponding number of printing characters. It will also be clear that when my invention is applied to a machine in which there is a relative shift of position of the platen and type-bars for upper and lower case and other characters the type-bars will be provided with a corresponding number of printing characters, and each key-bar will.

effect the impression of as many characters as there are shifts of the platen and type-bars.

IIaving thus described my invention, the following is what I claim as new therein and desire to secure by Letters Patent:

1. In a type-writing machine, the combination of a shiftable carrier, a type-bar mounted upon said carrier, a group of keybars operatively connected with the typebar carrier, a plurality of stops independent of the connection between the key-bars and carrier, said stops being adapted to arrest the carrier in its normal and shifted positions, and means actuated by some of said keybars for operating said stops, substantially as set forth.

2. In a type-writing machine, the combi nation of a shiftable carrier, a type-bar mounted upon said carrier, and a key-bar suitably connected with said type-bar car- I rier, with a plurality of stops, one of which is arranged to normally engage the carrier for limiting its movement, while another of which is normally in disengaged position, and means for operatingsaid stops, substantially as set forth.

3. In a type-writing machine, the combination of a shiftable carrier, a type bar mounted upon said carrier and a group of key-bars, one of which is suitably connected with said type-bar carrier, with a plurality of stops, one of which is arranged to normally engage the carrier for limiting its movement, and another of which is normally in disengaged position, and means actuated by some of said key-bars for operating said stops, substantially as set forth.

4. In a type-writing machine, the combination of a shiftable carrier, a type-bar mounted upon the carrier, and a key-bar connected with the type-bar carrier, with a pair of limiting dogs or stops, and means for operatin said dogs or stops, one of said dogs being formed with two engaging shoulders for arresting the carrier in two shifted positions, and the other of said do s being formed with a single enga ing shouIder for holding the carrier in a third or normal position, substantially as set forth.

5. In a type-writing machine, the combination of a shiftable carrier, a type bar mounted upon the carrier, and a group of three key-bars, suitably connected with the type-bar carrier, with a pair of limiting dogs or stops, and means of engagement between two of said key-bars and said dogs or stops for operating them, one of said dogs being formed with two engaging shoulders for arresting the carrier in two shifted positions, and the other of said dogs being formed with a single engaging shoulder for holding the carrier in its normal position, substantially as set forth.

6. In a type-writing machine, the combination of a shiftable carrier, a type bar mounted upon said carrier, a plurality of keybars having a common connection with the type-bar carrier, dogs or stops independent of said connection and adapted to limit the movement of the carrier, and means actu ated by some of said key-bars for shifting the 7 ment of the carrier, means of engagement between the key-bars, and means operated by some of said key-bars for shifting the position of the dogs or stops, substantially as set forth.

8. In a type-writing machine, the combination of a shiftable carrier, a type bar mounted upon said carrier, a bellcrank keylever connected with said carrier, key-levers arranged upon opposite sides of said bellcrank key-lever and formed with inwardlyprojecting fingers which are adapted to engage said bell-crank, and a pair of limiting dogs or stops operated by said key-levers, substantially as set forth.

9. In a type-writing machine, the combination of a shiftable carrier, a type -bar mounted upon said carrier, a bell-crank keylever connected with said carrier, key-levers arranged upon opposite sides of said bellcrank key-lever and formed with inwardlyprojecting fingers which are adapted to engage said bellcrank, a pair of carrier-limiting dogs or stops, and arms projecting from the outer key-bars and operatively engaging said dogs or stops, substantially as set forth.

10. In a type-writing machine, the combination of a shiftable carrier supportinga typebar, a pair of pivotally-mounted dogs or stops adapted to limit the movement of the type-b ar carrier, pivotally-mounted key-bars formed with rearwardly-projecting fingers which engage said dogs or stops for operating them, and means connecting said key-bars with the carrier, substantially as set forth.

11. In a type-writing machine, the combination of a shiftable carrier, a type bar mounted upon said carrier, a pair of pivotally-mounted dogs or stops adapted to limit the movement of the carrier, two pivotallymounted key-bars formed with rearwardlyprojecting fingers which engage said dogs or stops for operating them, a third pivotally mounted key-bar, means connecting said third key-bar with the carrier, and means of engagement between the dog-operating keybars and said third keybar, substantially as set forth.

12. In a type-writing machine, the combi nation of a shiftable carrier carrying a typebar, a pair of pivotally-mounted dogs formed with rearwardly-projecting carrier-engaging shoulders, and forwardly-presented slots or recesses, a pair of pivotally-mounted key-bars having rearwardly-projecting fingers which engage in said forwardly-presented recesses of the dogs, and means operatively connecting said key-bars with the carrier, substantially as set forth.

13. In a type-writing machine, the combination of a shiftable carrier, a type bar mounted upon said carrier, a pair of pivotally-mounted dogs formed with rearwardlyprojecting carrier-engaging shoulders, and forwardly-presented slots or recesses, a pair of pivotally-mounted key-bars having rear- 'Wardly-projecting fingers which normally engage in said forwardly-presented recesses of the dogs, and are adapted to move out of the recesses into engagement with the forward faces of the dogs to rock the dogs upon their pivots and lock them in their carrierengaging position, and means operatively connecting said key-bars with the carrier, substantially as set forth.

14. In a type-Writing machine, the combination of a shiftable carrier, a type bar mounted upon said carrier, a pair of limiting dogs or stops pivotally mounted upon the base of the machine, each dog being formed with. a downwardly-presented lug, a rearwardl-ypresented carrier-engaging shoulder, and a forwardly-presented slot or recess, a pair of key-bars pivotally mounted upon the machine-frame and formed with rearwardlyprojecting fingers engaging the slots or recesses of the dogs, and means operatively connecting said key-bars with the type-bar carrier, substantially as set forth.

15. In a type-writing machine, the combination of a vertically-shiftable carrier formed with guide portions and a stop portion, guideplates in which said carrier is slidingly mounted, a type-bar pivoted upon said carrier, a key-bar connected with the type-bar and adapted to move the type-bar and carrier through its type-bar connection, and dogs adapted to engage said stop portion for limiting the movement of the carrier, substantially as set forth.

16. In a typewriting machine, the combination of the parallel horizontal guide-plates 5, 10, formed with vertical guide-slots 6, 11, a vertically-shiftable carrier formed with rectangular oppositely-extended guiding or plate portions 15, 16, which operate in the slots 6, 11, of the guide-plates, a type-bar mounted upon the carrier, a key-bar connected with the carrier, and means for limiting the movement of the carrier, substantially as set forth.

17. In a type-writing machine, the combination of horizontal guide -plates formed with vertical guide-slots, a vertically-shiftable carrier formed with rectangular guiding or plate portions which operate in the slots of the guide-plates and a forwardly-projecting stop-finger, a type-bar pivoted upon the carrier, a key-bar connected with the typebar, and dogs adapted to engage the stop-finger for limiting the movement of the carrier, substantially as set" forth.

18. In a type-writing machine, the combination of the horizontal guide-plates formed a With a forwardly and laterally projecting stop-finger, a type-bar mounted upon said carrier, a key-bar connected with said carrier, a stop-dog adapted to engage the stopfinger of the carrier, and means for operating 1 said stop-dog, substantially as set forth.

CHARLES E. PETERSON.

Witnesses WM. E. KNIGHT, J. GREEN. 

